Medicare Enrolled
Dr. David Byrens, M.D.
Family Medicine · Marshall, MI
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
Low-engagement
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating.
This page presents federal public records about Dr. Byrens from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
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What this data tells you about Dr. Byrens
Dr. David Byrens is a family medicine specialist in Marshall, MI, with 20 years of NPI registration. Based on federal Medicare data, Dr. Byrens performed 2,045 Medicare services across 1,257 unique beneficiaries.
Between the years covered by Open Payments, Dr. Byrens received a total of $8,814 from 65 pharmaceutical and/or device companies across 619 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in family medicine. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Byrens is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
✓ 20 years in practice
▲ Top 7% volume in MI
$8,814 industry payments
Medicare Practice Summary
Medicare Utilization ↗2,045
Medicare services
Top 7% in MI for family medicine
1,257
Unique beneficiaries
$28
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~102 Medicare services per year of practice
Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
646 | $39 | $152 |
| Office visit, established patient (10-19 min) An office visit for an existing patient lasting 10 to 19 minutes. The visit involves medical evaluation and management of the patient's condition. |
224 | $37 | $95 |
| Urinalysis, manual A manual laboratory examination of a urine sample to check for various substances and cells. |
220 | $3 | $10 |
| Annual wellness visit, follow-up A follow-up annual wellness visit that includes a personalized prevention plan of service. |
214 | $43 | $200 |
| Drug injection, under skin or into muscle A procedure involving the administration of a medication or substance via injection into the subcutaneous tissue or muscle. |
143 | $8 | $36 |
| Annual depression screening | 141 | $17 | $30 |
| Methylprednisolone acetate injection, 20 mg A 20 mg injection of methylprednisolone acetate, a corticosteroid medication. This code specifies the drug and dosage administered. |
138 | $3 | $10 |
| Hemoglobin A1c test (diabetes monitoring) A blood test that measures your average blood sugar levels over the past two to three months. |
104 | $9 | $25 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
60 | $41 | $210 |
| Electrocardiogram (EKG), 12-lead A standard heart rhythm test using at least 12 leads to record electrical activity. A healthcare provider interprets the results and provides a written report. |
41 | $9 | $52 |
| Joint injection, major joint Removal of fluid from a large joint and/or injection of medication into the joint space. |
24 | $32 | $163 |
| Transitional care management, high complexity Coordination of care for a patient transitioning from a short-term hospital stay or other facility to home or another care setting. This service addresses a high-complexity medical problem. |
23 | $60 | $367 |
| Initial preventive physical examination, new Medicare beneficiary A comprehensive preventive health visit for new Medicare beneficiaries during their first 12 months of enrollment. The service is conducted as a face-to-face visit and is limited to preventive care. |
23 | $111 | $250 |
| Annual wellness visit, initial visit A yearly appointment to review your health and create a personalized prevention plan. This initial visit focuses on preventive care and health assessment. |
18 | $39 | $200 |
| Expiratory airflow and volume test A test that measures the amount of air you can exhale and the speed at which you can breathe it out. It evaluates lung function by assessing expiratory airflow and volume. |
15 | $13 | $80 |
| Destruction of precancerous skin growth, 1 Removal of a single precancerous skin growth. This procedure destroys abnormal skin cells to prevent them from developing into cancer. |
11 | $30 | $130 |
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. A higher procedure volume generally indicates more experience with that procedure.
Industry Payment Transparency
Open Payments through 2023 ↗$8,814
Total received (2018-2023)
Avg $1,469/year across 6 years
Top 4% in MI for family medicine
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
65
Companies
619
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →
Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$8,670 (98.4%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$144 (1.6%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2023
$1,101
2022
$1,287
2021
$2,121
2020
$1,545
2019
$1,040
2018
$1,719
Payments by company (2023)
Consulting
Speaking
Meals & Travel
Research
AbbVie Inc.
$168
Merck Sharp & Dohme LLC
$131
Lilly USA, LLC
$93
PFIZER INC.
$62
Supernus Pharmaceuticals, Inc.
$58
Boehringer Ingelheim Pharmaceuticals, Inc.
$56
Bayer Healthcare Pharmaceuticals Inc.
$55
Novo Nordisk Inc
$52
Exact Sciences Corporation
$48
Axsome Therapeutics, Inc.
$41
Lundbeck LLC
$39
Otsuka America Pharmaceutical, Inc.
$39
Teva Pharmaceuticals USA, Inc.
$34
GlaxoSmithKline, LLC.
$31
Takeda Pharmaceuticals U.S.A., Inc.
$29
NESTLE HEALTHCARE NUTRITION INC.
$27
Phadia US Inc.
$23
SANOFI PASTEUR INC.
$23
Ironshore Pharmaceuticals Inc.
$20
Daiichi Sankyo Inc.
$17
Amgen Inc.
$17
AstraZeneca Pharmaceuticals LP
$13
Kowa Pharmaceuticals America, Inc.
$13
Corium, LLC
$12
Top 3 companies account for 35.6% of 2023 payments
All-time payments by company (2018-2023) ›
PFIZER INC.
$689
Janssen Pharmaceuticals, Inc
$550
AstraZeneca Pharmaceuticals LP
$503
Novo Nordisk Inc
$500
Lilly USA, LLC
$446
GlaxoSmithKline, LLC.
$418
AbbVie Inc.
$389
Takeda Pharmaceuticals U.S.A., Inc.
$368
Boehringer Ingelheim Pharmaceuticals, Inc.
$337
Supernus Pharmaceuticals, Inc.
$331
Allergan Inc.
$302
Amarin Pharma Inc.
$292
Merck Sharp & Dohme LLC
$252
Astellas Pharma US Inc
$244
Novartis Pharmaceuticals Corporation
$225
Nestle HealthCare Nutrition Inc.
$208
Teva Pharmaceuticals USA, Inc.
$184
Allergan, Inc.
$161
ABBVIE INC.
$158
Sunovion Pharmaceuticals Inc.
$157
Amgen Inc.
$133
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$122
JAZZ PHARMACEUTICALS INC.
$120
Lundbeck LLC
$118
Merck Sharp & Dohme Corporation
$102
Daiichi Sankyo Inc.
$101
Phadia US Inc.
$96
Eisai Inc.
$93
UPSHER-SMITH LABORATORIES LLC
$71
Jazz Pharmaceuticals Inc.
$67
Otsuka America Pharmaceutical, Inc.
$64
SANOFI-AVENTIS U.S. LLC
$59
Biohaven Pharmaceuticals, Inc.
$55
Bayer Healthcare Pharmaceuticals Inc.
$55
Exact Sciences Corporation
$48
Xeris Pharmaceuticals, Inc.
$48
Horizon Therapeutics plc
$47
Almatica Pharma LLC
$46
Strongbridge US INC.
$43
Axsome Therapeutics, Inc.
$41
ITI, Inc.
$39
Biohaven Pharmaceutical Holding Company Ltd.
$38
Upsher-Smith Laboratories LLC
$38
Ironshore Pharmaceuticals Inc.
$35
Dexcom, Inc.
$34
Bayer HealthCare Pharmaceuticals Inc.
$33
AbbVie, Inc.
$30
E.R. Squibb & Sons, L.L.C.
$27
NESTLE HEALTHCARE NUTRITION INC.
$27
Pulmonx Corporation
$25
Shire North American Group Inc
$23
SANOFI PASTEUR INC.
$23
GRT US Holding, Inc.
$20
Esperion Therapeutics, Inc.
$20
Tris Pharma Inc
$19
Seqirus USA Inc
$15
Shield Therapeutics Inc
$15
Ironwood Pharmaceuticals, Inc
$15
Abbott Laboratories
$14
Melinta Therapeutics, Inc.
$14
Regeneron Healthcare Solutions, Inc.
$14
Nabriva Therapeutics, plc
$14
Adlon Therapeutics L.P.
$14
Kowa Pharmaceuticals America, Inc.
$13
Corium, LLC
$12
Top 3 companies account for 19.8% of all-time payments
Associated products mentioned in payments ›
ACCRUFER · ADHANSIA XR · ADVAIR · AIMOVIG · AJOVY · ANORO · ANORO ELLIPTA · AUSTEDO · Aimovig · AirDuo Digihaler · Amitiza · Auvelity · Azstarys · BASAGLAR · BEXSERO · BREZTRI · BYDUREON · Baxdela · CAPLYTA · CHANTIX · COLOGUARD · COLOGUARD DNA CAPTURE REAGENTS · CREON · Cologuard Collection Kit · Creon · DUEXIS · Dayvigo · Dexcom G6 Transmitter · ELIQUIS · EMGALITY · ENTRESTO · EUCRISA · EVENITY · FARXIGA · FLECTOR · FORTEO · Fluad Quadrivalent · FreeStyle Libre 2 · GARDASIL 9 · GATTEX · INJECTAFER · INVOKANA · ImmunoCAP · JARDIANCE · JORNAY PM · Jornay PM 20mg capsules (Bottle of 100) · KEVEYIS · KRYSTEXXA · Kerendia · LATUDA · LINZESS · LOREEV XR · LYRICA · MOTEGRITY · MOUNJARO · MYDAYIS · MYRBETRIQ · NEXLETOL · NUCALA · NUEDEXTA · NURTEC ODT · Ozempic · PAXLOVID · PENNSAID · PNEUMOVAX 23 · PRALUENT · PRALUENT ALIROCUMAB INJECTION · PREVNAR - 13 · PREVNAR 13 · PREVNAR 20 · PROQUAD · Prolia · QELBREE · QULIPTA · Quillichew ER · Qutenza · REXULTI · ROTATEQ · Rybelsus · SEGLENTIS · SERTRALINE HCL · SHINGRIX · SOLIQUA · SPIRIVA · SPRAVATO · STIOLTO RESPIMAT · SUNOSI · SYMBICORT · Saxenda · Sivextro · TOSYMRA · TOSYMRA SUMATRIPTAN NASAL SPRAY · TOUJEO · TRADJENTA · TRELEGY ELLIPTA · TRINTELLIX · TROKENDI XR · TRULICITY · Trintellix · UBRELVY · VAXELIS · VIBERZI · VRAYLAR · VYEPTI · VYVANSE · Vascepa · Victoza · Vyvanse · Wegovy · XARELTO · XIFAXAN · XYREM · ZENPEP · ZEPHYR DELIVERY CATHETER
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →
Most payments (98%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians. Total industry engagement is in the top 4% for family medicine in MI.
Geographic Context
Family medicine physicians within 10 mi
108
Per 100K population
80.7
County median income
$60,385
Nearest hospital
OAKLAWN HOSPITAL
0.0 mi
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2023 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Byrens is a clinical cardiology specialist, with above-average Medicare volume (top 7% in MI), with low-engagement industry engagement in the top 4% of MI peers, with 20 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Byrens experienced with office visit, established patient (20-29 min)?
Based on Medicare claims data, Dr. Byrens performed 646 office visit, established patient (20-29 min) services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
Does Dr. Byrens receive payments from pharmaceutical companies?
Yes. Dr. Byrens received a total of $8,814 from 65 companies across 619 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Byrens's costs compare to other family medicine physicians in Marshall?
Dr. Byrens's average Medicare payment per service is $28. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Byrens) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating a long track record of practice, Medicare participation, and industry disclosure. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →
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About this page
All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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